What all of them said. You must have a goal, and apparently you do, but be aware that none of the preceding posters ever ended up where they intended.

The problem with life is, that even if you follow all the rules and lessons, you have no guarantee that it will unfold as you wish. Your job is to go for it and to play the cards you are dealt. I'll bet that in 20 years, your story will be similar to the ones you've been reading on this thread: "I had intended to ......... But here I am."